{"type": {"key": "/type/work"}, "title": "A comparison of union construction workers", "subjects": ["Apprentices", "Construction workers"], "subject_places": ["United States"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL948976A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL6738708A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL5431718A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL8022971A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL16404165A"}}], "key": "/works/OL45489884W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-05-19T01:21:55.665876"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-19T01:21:55.665876"}}